All Articles Tagged As: sun
 | Stop the presses! The sun is behaving normally. ...> Full Article |
 | The sun is about to undergo unremitting scrutiny. About six times each minute of every hour for at least five years, a soon-to-be launched NASA satellite will measure the sun's quirky-and sometimes stormy-output of extreme ultraviolet light ...> Full Article |
 | For more than 400 years, astronomers have studied the sun from afar. Now NASA has decided to go there. ...> Full Article |
 | The sun has been laying low for the past couple of years, producing no sunspots and giving a break to satellites ...> Full Article |
 | Scientists quietly switched off asatellite in April, ending a 10-year series of ups and downs for NASA's first and only low-cost, university-class Explorer spacecraft ...> Full Article |
 | Scientists at NASA reveal a new understanding of the mysterious mechanism responsible for heating the outer part of the solar atmosphere, the corona, to million degree temperatures. ...> Full Article |
 | On April 9, the Sun erupted and blasted a bubble of hot, ionized gas into the solar system. The eruption was observed in unprecedented detail by a fleet of spacecraft, revealing new features that are predicted by computer models but difficult to see in practice. ...> Full Article |
Astronomers have found there is nothing special about the Sun after conducting the most comprehensive comparison of it with other stars - adding weight to the idea that life could be common in the universe.
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 | Spacecraft to go closer to the sun than any probe has ever gone - and what it finds could revolutionize what we know about our star and the solar wind that influences everything in our solar system. ...> Full Article |
 | Stunning images, obtained by ESO staff at Paranal, of the green and blue flashes, as well as of the so-called 'Gegenschein', are real cases in point. ...> Full Article |
 | Satellite data shows clearly that powerful starquakes ripple around the Sun in the wake of mighty solar flares that explode above its surface. The observations give solar physicists new insight into a long-running solar mystery and may even provide a way of studying other stars. ...> Full Article |
 | New insights into solar activity have been revealed thanks to research from a group of Cambridge academics ...> Full Article |
 | One of the most dynamic events in the interaction between the Sun and the Earth is a 'substorm', an explosive reshaping of the Earth's outer magnetic field. To better understand substorms, scientists in Europe and North America are studying them from space using the Time History of Events and Macroscale Interactions during Substorms (THEMIS) satellites launched by NASA in 2007 and from the ground using a network of all-sky cameras. ...> Full Article |
 | As a result of intensive collaboration with NASA's Goddard Space Flight Center near Washington, astronomers at Queen's University Belfast have announced an exciting discovery that could pave the way to solving a problem which has been baffling solar physicists for years. ...> Full Article |
 | A medical X-ray technique has been adapted to produce the first detailed map of the structure of the Sun's outermost layer, the corona, created from direct observations. ...> Full Article |
 | Predicting the behavior of a sunspot cycle is fairly reliable once the cycle is well underway (about 3 years after the minimum in sunspot number occurs. Prior to that time the predictions are less reliable but nonetheless equally as important. Planning for satellite orbits and space missions often require knowledge of solar activity levels years in advance. ...> Full Article |
 | Astrophysicists are having a heated debate over the wave structure of the Sun's Corona - a debate which may one day influence solar weather forecasting and the theory behind fusion reactors. ...> Full Article |
New calculations by astronomers predict that the Earth will be swallowed up by the Sun in about 7.6 billion years unless the Earth's orbit can be altered.
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 | The Ulysses spacecraft today is making a rare flyby of the sun's north pole. Unlike any other spacecraft, Ulysses is able to sample winds at the sun's poles, which are difficult to study from Earth. ...> Full Article |
 | The appearance of a very special solar spot on the sun surface a few days ago, signalled to scientists around the world that a new solar cycle had begun. This solar spot also produced two solar blasts. ...> Full Article |
 | A new 11-year cycle of heightened solar activity, bringing with it increased risks for power grids, critical military, civilian and airline communications, GPS signals and even cell phones and ATM transactions, showed signs it was on its way late Thursday when the cycle's first sunspot appeared in the sun's Northern Hemisphere, NOAA scientists said. ...> Full Article |
 | Scientists have discovered that our sun's 'atmosphere' is asymmetric, thanks to two champion spacecraft. ...> Full Article |
 | The Sun is minimally active right now, but this quiet state of affairs won't last for long. Over the next few years, the number of solar flares and eruptions known as coronal mass ejections will increase until reaching solar maximum in 2011 or 2012. Such eruptions can impact Earth, disrupting satellites, communications, and even power grids. Some predict the next solar cycle will be the most intense in 50 years. As a result, scientists are striving to understand the mechanism behind solar eruptions in hopes of eventually being able to predict them in a space "weather forecast." ...> Full Article |
 | Spectacular images and data from the Hinode mission have shed new light on the Sun's magnetic field and the origins of solar wind, which can disrupt power grids, satellites and communications on Earth. ...> Full Article |
 | Tom Nichols, a mechanical engineer at Lockheed Martin in Palo Alto, works on the HMI. ...> Full Article |
 | Formerly, the Sun was the largest object in the Solar System. Now, comet 17P/Holmes holds that distinction. ...> Full Article |
 | A NASA satellite designed, built and controlled by the University of Colorado at Boulder is expected to help scientists resolve wide-ranging predictions about the coming solar cycle peak in 2012 and its influence on Earth's warming climate, according to the chief scientist on the project. ...> Full Article |
 | As reservoirs of valuable information go, nothing beats the sun. This sphere of heat and energy holds 99.9 percent of the solar system, saved in all original proportions after planets and meteorites formed. Analyzing the mix of hydrogen, oxygen and noble gases found in the sun can answer one of the biggest questions of the universe: How did our solar system evolve? ...> Full Article |
 | In a landmark test flight a team of research partners this month successfully launched a solar telescope to an altitude of 120,000 feet, borne by a balloon larger than a Boeing 747 jumbo jet. The test clears the way for long-duration polar balloon flights beginning in 2009 that will capture unprecedented details of the Sun's surface. ...> Full Article |
 | "We've never seen anything quite like it," says solar physicist Lika Guhathakurta from NASA headquarters. ...> Full Article |
An international team of astronomers is one step closer to answering the question, "Will the world end with a bang or a whimper?"
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 | Scientists for the first time have observed elusive oscillations in the sun's corona, known as Alfvén waves, that transport energy outward from the surface of the sun. The discovery may give researchers more insight into solar magnetic fields, eventually leading to a better understanding of how the sun affects Earth's atmosphere and the entire solar system.
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 | Observations of solar flares by spacecraft at Mars, Venus and the Earth show that eruptions on the far side of the Sun may affect our "space weather" back on Earth. ...> Full Article |
 | A year after launch, scientists working with Hinode, a Japanese mission with ESA participation, are meeting at Trinity College, Dublin, to discuss latest findings on solar mysteries - including new insights on solar flares and coronal heating. ...> Full Article |
 | An international team of researchers has detected low-energy solar neutrinos--subatomic particles produced in the core of the sun--and measured in real-time the rate the particles hit our planet. ...> Full Article |
 | Using NASA's Swift satellite, McGill University and Penn State astronomers have identified an object that is likely one of the closest neutron stars to Earth -- and possibly the closest. ...> Full Article |
 | Scientists from the Ulysses mission have proven that sounds generated deep inside the Sun cause the Earth to shake and vibrate in sympathy. They have found that Earth's magnetic field, atmosphere and terrestrial systems, all take part in this cosmic sing-along. ...> Full Article |
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